51354069calculator

万年历（0-9999）（每行打印2个月）。(Calendar (0 to 9999) (2 months each line of print).)

Factory 模式的两个最重要的功能： 1）定义创建对象的接口，封装了对象的建； 2）使得具体化类的工作延迟到了子类中。 (Factory mode two most important functions: 1) the definition of an object to create an interface that encapsulates the construction objects 2) makes specific class work delayed to subclasses.)

可将输入的任意十进制数转换为你想要任意进制数。(Any input can be converted to decimal you want any decimal.)

opc com ole opc代理存根源码(opc com ole opc proxy stub source)

可用于抽奖等需要临时随机抽号的场合（压缩包中详细的说明文档）(Can be used to draw random numbers that require temporary occasions (compressed package detailed documentation))

计算器，可进行四则运算，并且有符号位，退格，以及小数点。(Calculator, can be carried out in four operations, and the sign bit, backspace, and decimal point.)

猴子选大王，一个十分有趣的小型程序，判断谁是大王(Elected king of monkeys, a very interesting small-scale process to determine who is the king)

C++ 编写的string类库，并实现string的各项函数操作。(string function)

读取文件。给出一个txt文件（水准数据）利用openfile 语句读取每一行的文件，再读入数据库。(Read the file. Gives a txt file (level data) to utilize openfile statement reads each line of the file, and read it into the database.)

可以方便的进行三次以内方幂求和公式的自动推导 此代码为独创(Can easily be a power of less than three times the automatic derivation of the summation formula for the original code)